The　3D　lattice　structures　have　the　characteristics　of　lightweight　and　high　strength,　showing　good　energy　absorption　characteristics　under　impact　loads.　Herein,　stretching-bending　synergistic　lattices　are　constructed,　with　the　macroscopic　backbone　in　the　stretching-dominated　configuration　and　the　mesoscopic　cells　in　the　bending-dominated　configuration.　The　lattices　organically　combine　the　two　deformation　mechanisms　of　stretching　dominant　and　bending　dominant　to　exhibit　high　specific　strength　and　excellent　specific　energy　absorption.　The　particular　deformation　model　and　energy　absorption　characteristics　of　the　stretching-bending　synergistic　lattices　are　analyzed.　The　dynamic　compression　response　of　the　structure　is　found　to　have　a　unique　stress　climbing　mechanism,　which　is　the　critical　factor　in　enhancing　its　energy　absorption　ability.　The　backbone　is　the　main　part　of　structural　energy　absorption.　By　changing　the　relative　density　of　the　backbone,　the　yield　strength　and　specific　energy　absorption　of　the　stretching-bending　synergistic　lattices　can　be　increased　by　more　than　78%　and　142%,　respectively,　than　the　uniform　lattices　with　the　same　relative　density.　The　hierarchical　structure　of　the　stretching　backbone　and　bending　cells　provides　a　new　approach　for　the　design　of　impact-resistant　structures.